Type-writing machine.



A. T. BROWN. TYPE WRITING MAGHINE. APPLIOATION IILED JULY 25, 1906Patented Feb. 21,1911.

4 SHEETS-SHEET L ATTORNEY WITNESSES A. T. BROWN. TYPE WRITING MACHINE.APPLICATION IILEI) JULY 25, 1906.

Patented Feb. 21, 1911.

4 SHEETS-SHEET 2.

lll

m z///////V//////////// I-NVENTOR Illa-l WITNESSES \AWJ Ai ATTORNEY A.T. BROWN. TYPE WRITING MACHINE. APPLICATION FILED JULY 25, 1906.

Patented Feb. 21, 1911.

4 SHEETS-SHEET 3.

(D Ll:

WITNESSES mvmfiof WM ATTORNEY A. T. BROWN.

' TYPE WRITING MACHINE. APPLIOATION FILED JULY 25, 1906.

Patented Feb. 21, 1911.

4 BHEETSSHEET E mom INVENTOR 7. m/ I %Z%%ZW% ATTORNEY ALEXANDER T.nnowivfor SYRACUSE, NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Feb. 21, 1911.

Application filed July 25, 1906. Serial No. 327,706.

new and usefullmprovements in Type-Writing Machines, of which thefollowing is a specification.

My invention relates to typewriting machines and more particularly tothe type actions of such machines, although the invention is alsodirected to other features of the machine.

The main objects of my invention are to provide a type action that has alight-touch; that affords a uniform leverage, a uniform extent of (lipof the keys and a uniform touchthroughout the system; that avoids sidestrain on the actions-at the sides of the machine; that affords butslight resistance to the key depression at the initial portion of thekey stroke and effects a gradual acceleration of the type bar in itsmovement to the printing position and that provides a construction inwhich various portions of the type actions may be assembled outside ofthe-machine and introduced in an assembled state into the machine.

To the above and other ends'which will hereinafter appear, my inventionconsists of the features of construction, arrangements of parts andcombinations of devices to be set forth in the following specificationand to be particularly pointed out in the accompanying claims.

In the drawings, wherein like reference characters indicatecorrespondil'ig parts in the various views, Figure 1 is a vertical,central, front to rear sectional view of one form of typewriting machineshowing my invention applied thereto, parts of the machine beingomitted.Fig. 2 is an enlarged detail. fragmentary perspective view of a portionof one of the type actions. Fig. 3 is a diagrammatic side elevation ofone of the type actions and a portion of the escapement mechanism. Fig.4 is a detail front elevation of one of the sub-levers at the righthandside of the machine. Fig. 5 is a rear elevation of the machine withparts broken away and parts omitted. Fig. 6 is a vertical front to rearsectional view taken cen-- trally through the machine and showing thecase shifting mechanism and partof one of the type actions. i

The frame of the machine comprises side 7 plates 1, a rear cross plate2, a front cross bar 3, corner posts 4 and a top plate Inwardlyextending lugs 6 on the side plates 1 constitute supports for \asupporting plate 7 which is detachably'secured to said lugs by screws 8.The supporting plate 7 is apertured at 9 (Fig. 6) at different pointsthroughout the width and length thereof for the reception pf hangerstems 10 threaded at their upper ends for cooperation with nuts 11.Depending from the stems 10 are bifurcated hanger portions 12 in whichkey levers 13 are received and pivoted thereto at 14, 14, 14, 14. Thekey level-s13 are provided with finger keys 15, 15 15, 15 arranged infour banks fore and aft of the machine. The key levers are levers of thefirst order and have rearwardly extending, substantially horizontallydisposed arms 13 which terminate at their rear ends in a singletransverse/plane and forwardly extending arms 13 which carry the keys.-From an inspection of Fig. 1- it will be seen that the key leversthroughout the system are of four different lengths and are pivoted totheir hangers at different points fore and aft of the machine in fourtransverse planes, the shortest key levers having the finger keys 15being pivoted at 14, the key levers having the finger keys 15 beingpivoted at 14, the key levers having the finger keys 15 being pivoted at14? and the key levers having the keys 15 bei 1g pivoted at 1 1. By thisconstruction the lever arms 13 and 13 of each key lever bears a uniformratio to each other, notwithstanding the fact that the keys are arrangedin four banks and that the rear ends of the key lovers terminate in asingle transverse plane. The purpose of this construction is to assistin providing a uniform extent of dip of the various keys and a uniformleverage throughout the system and also to effecta uniform extent ofmovement of the universal bar by the differentkey levers, all as willhereinafter more clearly appear. Each key lever has a depending arm 16which has a hook like member 17 at the lower end thereof with which oneend of a contractile spring 18 engages, the other end of said springbeing connected to a rod 19 which extends transversely beneath thevarious key levers and is secured at its ends to the side plates 1 ofthe machine. The rearwardly' extending horizontally disposed arm 13 ofeach key lever is pivoted at 20 to alink designated as whole by thereference numeral 21, the opposite end of'said link being pivoted at 22to the lower end of an upright sub-lever 23' pivoted at 24 to' a hanger25, the sub-lever'extending substantiallyat right angles tothe link. Theupper end of each sub-lever is pivotally con-' nected at 26 toa pulllink 27 that extends forwardly and is connected at 28-to a type bar 29having a rearwardly extendin arm 30 that-coeperat'es with a-typebarguide 31 formed as a part of a hanger 32'to which the associatedtype'bar is pivoted at 33. The

' various type bar hangers are secured to the rear face of a type barsegment 34 by headed screws 35. c v

The type bar constructionv is similar to that disclosed in the patentgranted to me on .the 19th day of September, 1905 which bears No. 799j627. The forward ends'of the type bars normally rest-on a pad 36supported by a segmental'strip 37 connected to arms 38 I which'projectforwardly from the type bar segment. The type'bars are segmentally 31*.

I ranged on the type bar segment 34 and are adapted to strike upwardlyand rearwardly against the front face ofthe platen diagrammaticallyshown at 39, Pivotally connected to the type bar segment at each sidethereof and near the upperportion of the segment as at 40 is a forwardlyprojecting link; 41 piv-- oted at its rear end 42 to a lug 43 whichprojects inwardly from each of the rear corner posts 4 of the frame. Thelinks 41 consti tute parallel links by which the upper portion of thesegment is guidedin its case shifting movement. The lower portion ofvthe segmenthas-outwardly projecting arms 44 (see Fig. 5) to which arepivotally connec'ted the forward ends of arms 45 that project forwardlyfrom a tubular member 46 which is in the nature of a rock-shaft andis Hprovided with bearings 47 in the ends thereof for coeperation withanti-friction balls 48. 'Coned ends 49 of bearing screws 50 cooperatewith the anti-friction balls to supportthe member 46 and the partsconnected theretoon the frame of the machine. The

bearing screws 50 are received in threaded openings in brackets 51'which pr'oject in- .wardly from the base of the machine; the

screws being held against accidental displacement by lock nuts 52. A.rearwardly extending crank arm" 53 projects from the member46 and itsrear end is connected to v 1 one end of .a coiled contractile spring 54which passes at its lower end through an opening in a lug 55' thatprojects inwardly from a side platev lrof the machine. The lower end ofthe spring is suitably connected to a: thumb nut 56 by which anadjustment 'of the tension ofthespri-ng 54 may be eifected. The spring54 is regulated partially to counterbalancethe weight, of the type barsegment. The arms 45' of the tubular member 46 andthe rearwardlyextending. arm 53 constitute a rigid frame by whichthe type bar segmentand the parts connected thereto may receive the case shifting movements.The arms 45 extend parallel with the links 41 and constitute parallellinks on which the segment can be shifted. One ofthe armsr45is'pivotally. connected at 57 to a depending link 58 which is pivoted atits lower end '59 to the rear end of a shift key lever 60 piv oted at 61to'a stud 61 that projects inwardly from aside plate 1 of the frame.

' The forward end of the key-lever 60 is provided with a key 62 so thata depression of the finger key 62 will elevate the rear end of thelever, thereby causing the type bar segment to be elevated to wr1teupper case char-. acters; Ifdesired eachof the arms 45 may I beconnected. with a shift key 62, said keys being situated atoppositeside's of the machine and either of them being operative 'tochange the case position of the segment. A

bracket 63 is secured by screws 64 to thesupporting plate 7 *at aboutthe center of the has a threaded opening therein for the remachine. Arearwardly extending arm'65 1 ception of a screw 66 that extends throughsaid arm and at its lower end forms a stop or abutment. A look nut 67 isthreaded on the screw to prevent accidental displacement "of the stop.Below the arm 65 is another arm-68 which projectsrearwardly from thebracket and has a threadedopening through which a screw stop.69 extends,the screw 00- operating with 'a lock nut 70 which holds it in itsadjustedposition. Extending forwardly from the segment is a member'71which extends into an opening between the two bracket arms 65 and 68 andcoeperates with the screw stops 66 and 69 to limit the shiftingmovements of the segment, the segment being normally supported bythe'stop '69.; .It' will beunderstood that the spring 54 acts as acounterbalancing spring to counteract the weight of the type bar segment and the parts carried thereby so that but little pressure isrequired on the shift key62 to shift the segment to the upper caseframe. The links 21 whichconnect the key levers with the sub-levers arepreferably formed as indicated in Fig.2 of two parallel side plates 75"and 76,- pivotally united intermediate their ends as at 77 so that oneof the members is adapted to turn relatively i all of the key levers.

to the other as shown in dotted lines in- Fig. 2. One of the side plates75 is a rigid memberwhich carries laterally projecting pivot pins 78, 79at the ends thereof, whereas the other plate 76 is slightly resilientand is preferably provided with openings 80 that are adapted to registerwith thepivot pins from said members when desired.

Extending above the key levers at the rear ends thereof is a universalbar 81 with which the key levers cooperate. The contact face of theuniversal bar is normally'in contact with all of said key levers andmakes contact therewith in the same transverse plane 7 so that it bearsthe same relation to all of the key levers, and a uniform extent ofmovement is transmitted to the universal bar by are secured to theuniversalbar' and are piv- .otally connected at their lower ends 83 torearwardly extending crank arms 84 of a rock shaft that turns on bearingscrews 85 threaded through openings in the side plates of the frame. Inorder to guide the universal bar in its up and down motion,

.the links 82 pass loosely through suitable openings in brackets 82(Fig, 5) which project inward from the side plates 1. A rearwardlyprojecting crank arm 86 is also connected to said rock shaft and ispivotal-1y connected. at its rear end to an upwardly extendinglin-k 87connected at 88 to a horizontally disposed lever 89 situated directlybeneath the top plate 5 of the machine and pivoted at 90 to a dependinglug 91 formed on the top plate. This horizontally disposed I leverextends fore and aft of the machine and is provided with a depending arm92 to which one end of a contractile spring 93v isconnected, the otherend of said spring being connected to a screw 94. which passes freelythrough an opening in a bracket 95 secured to the top plate at 96. Athumb nut 97 coiiperates with the screwto effect an adjustment of thetension of the spring 93. The forward end of the lever 89 is connecteddirectly to a ribbon vibrator 98, whereasthe rear end of the lever hasfeed dogs 99 formed integral therewith, and cooperating with theescapement wheel-100. The escapementwheel is secured by ascrew 101 to avertically disposed shaft 102 received in an upright bearing 103 formedon the top plate of the machine and extending above it as shown in Fig.3. A collar 104 is secured to the-she ft by a pin 105 so that thecollar and.

the hub of the escapement wheel bear against opposite ends of thebearing 103 and prevent support the pinion in place.

Depending links 82 parts controlled thereby.

a longitudinal movement of the'shaft 1.02 in its bearing.

A feed pinion 106 has a hub or extension 107 which bears on the collar104 to properly The pinion is v loosely mounted on the cylindricalportion of the shaft 102 and has a clutch member 108 formed on the upperend thereof. A cooperating clutch member 109 is located above the clutchmember 108 and is in the nature of a sleeve with a, rectangular openingwhich cooperates with a rectangular portion 110 on the shaft 102 tocause the clutch member 109 to rotate with the shaft but to afford .amovement of the clutch member axially thereof. A peripheral flange 111is formed on the clutch member 109 for cooperation with a forwardlyprojecting flange 112 on a bar or bail 113 that extends throughout thelength 1 of the carriage and is provided at its ends with forwardlyprojecting arms 114: pivoted at 115 to end plates 110 of the carriage.One or both of the arms 114 may be extended forwardly beyond theirpivots to form arms 117 that carry release keys 118 at the forward endsthereof. Eachof the arms 117 is preferably slotted at 119 forcotiperation with a pin 120'which projects outwardly from an end plate116 of'the carriage and intot'he slot 119 of the associated lever tolimit the movement of the release levers 117 and. the The carriage whichsupports the platen 39 comprises the end plates 116 heretofore referredto and members 121, 122 provided with oppositely disposed grooved tracks123 for cooperation with anti-friction balls 124: which are likewisereceived in oppositely disposed grooved tracks 125 in an inclined plate126 secured by screws 127 to uprights or lugs 128 on the top plate ofthe machine. A paper table 129 is secured to the members 121 and 122.The depending flangedike portion 130 on the member 122 has fixed on itsrear face a feed rack 131 which meshes with the feed pinion 106. Theusual spring drum not shown) is connected to the carriage to etfect aforward step-by-ste feed thereof, when the finger keys are depressei itbeing understood that each actuation of a finger keywill effect anelevation of the forward end of the lever 89 to operate the escapementand to elevate the ribbon vibrator 98 to interpose the ribbon in thepath of the. approacliing type bar.

A finger key or space bar 132 is connected at its ends to two levers 133situated on op-,

posite sides of the machine, said levers being somewhat similar to thekey levers 13.

One of the levers 133 has at its rear end a downwardly extending portion133 and is provided at the lower end of the down Wardly extendingportion with an outwardly bent hook-like member 134 which extendsbeneath one of the crank arms 84. Each of the key levers 133 is mountedin one of the.

hangers; 12 carried by the supporting plate 7. A depression of, thekey'132' therefore is effective to elevate the arm 84 to which it isoperatively connected, thus-rocking the 5 shaft 85 and causing theforward end of the lever 89 to be elevated to effect a downward movementof the feed dogs.- When pressure on the finger key 132 isreleased theparts will be restored to their normal position,- thus aflording aletter space movement of thecarriage. During the 'operationof themachine in the usual manner the feed dogs will be vibrated to afford areleaseof the escapeme nt wheel and the. pressure exerted on thecarriage by, the carriage spring will cause the pinion. 106 to be"rotated and the two-clutchmembers 108, 109 being in engagement at thistime a letter space rotation of the escapemcnt wheel is effected. Shouldthe operator desire to releasejthe carriage from the escapementmechanism itis merely necessaryxto depress either. of the release keys118 which will effect an upward move-:

ment of the clutch member 109' axi'allyof the shaft 102 by the directengagement of the. :bail under the circumferential flange 111. Theclutch members being thus re'-' leased the carriage may be movedineither .direction and the feed pinion will turn freely on its shaft;

, The carriage construction 'hereinbefo're described is somewhat similarto that dis-' closed and claimed .in my a-pplications, Se

.. rial-Nos. 305,053 and 214,625, dated respec- :tively March 9th, 1906and June 29th, 1904.

From an inspection of Figs. 1 and 5 it will be-seen that the verticallydisposed'parallel hangers 25 are all alike'in construction and arearranged in an are or at gradually higher elevations from the center tothe sides of the system. Each of the hangers in question comprises abifurcated portion in which the sub-lever is pivoted and each hanger issecured to the front face of a'plate 135 by a screw 136. It'will beobserved that each headed screw passes "from the 1 rear thioughthe plate135 and is received at its threaded end in athreaded opening in the baseor attaching portion of the hangerjand that this threaded opening in thehanger is 'olf-set vertically with reference to the pivot 24, or isofi-set to one side of the center of the hanger, considering the centeras pass- -i ng at right angles from the base-of the 55 hanger forwardlythrough the pivot 24, thus bringing the screw hole on one side of oreccentric to the-center line of the hanger.

This screw hole'is thus formed longitudina'lly of the hanger, and thefastening screw I engages 'thefhangerin the direction of its length sothat one end, the base end only, of the hanger is caused. tobear againstthe support provided-for the hanger, This support or base plate 135 isprovided with two concentric rows ofscrew holes for the admission of thescrews 136, and the holes of one row arexarranged to alternate withthose of the other row, as seen more clearly in Fig, '5, The threadedholes in the hangers arelikewise' arranged to form two concentric rowsand-to alternate to correspond with I the alternation of the holes inthe support or base plate, thus providing for a close arrangementofhangers in a single row with two rows-of staggered or alternatingfastening screws, The construction of each hanger is such that it may bereversed and either sidethereof be placed uppermost, which enables thesecuring screws to bearranged in staggered relation as shown in Fig. 5while the pivots 24 are arranged in a smooth curve. .The hangers areallalike, and the staggering of the screws shown in Fig. 5 is pro 'ducedbysetting every other hanger. with its threaded opening above thepivots24;,the

alternate .hangers beingnreversed and set .with their threaded :openingsbelow the' pivots. As shown in the present case,- allof the hangers 25are set so that theslots in which the sub-lev'ers play are subst'an- 96tially. vertical. Theplate 135 to which the hangers are secured is heldin position by screws 137 which extend through the rear cross plate 2and the threaded ends .thereof are received in openings in the plate135.

By this arrangement, and by reason of the detachable feature of thesupporting plate 7, the various key levers, theirconnecting links 21,and sub-levers 23 may be assembled and connected outside of the machineand-10o 1ntroduced as a-umt'intothe machine, the

parts being readily connected and support.

ed in place by the screws -8 and 137. It will also be seen that theconstruction is' such that parts of each type action, or any type actionas a whole, may be removed from the machine without disturbing the othertype actions, or the entire systemflof key levers or the entire systemofsub-levers may be readily removed as a unit without dismounting any ofthe other parts of the machine; the disconnectible links 21 facilitatingthe removal of either the system of sub-levers or'thesystem of keylevers when desired. 1

From an inspection of Fig. 5 it will be 1 observed that the sub-levers23"have' their upper ends arranged in an are which is substantiallyco-extensive with the arc in which thetype bars are mounted and that inthe' actuation of each type action a direct 12 fore and aft pull iseflected onthe link 27 to move'the type bar to printing position. Thelower ends of the sub-levers are arrangedin a single horizontal plane soas to properly connect with the links 21 which 125. constitute"tog lelinks as will hereinafter appear. It Wlll also be seen from aninspe'ction of Fig; 5 that both sets of arms and that the sub-levers atthe sides of the machine are situated in inclined planes extendinginwardly and upwardly from the links 2l to the draw links 27 to whichthey are connected. One of these sub-levers at the side of the machineis'shown in detail in Fig. 4 from which it will be seen that the pointsof.conneetion of the sub-lever with its link 21 and draw link 27 is inthe same inclined plane as the pivotal point of said lever.. In otherwords, the pivotal connections 2:2, 24: and 26 are in the same inclinedplane so that lateral strain is avoided. It will also be understood thatthe converging sub-levers at the sides of the system compensate for thedifference in width between the system of type bars and the system oflinks 21. the latter system being co-extensive in width with the systemof key levers. By arranging the sublevers in the manner describedwiththe pivots thereof. arranged at progressively higher elevations as thesides of the system are a roached and by raduallv increasin the lengthof both sets of lever arms of'the sub-levers as shown I ain enabled notonlv to arrange the upperend of the sub-levers are situated and toafford a direct fore and aft pull on the type bars, as hcreinbeforedescribed, but I am also enabled to provide a uniform leverage of thesub-levers through out the system. With an'cqualization of the leverageofthe key lever system and the sub-lever system a uniform leveragethrough the entire system of typeactions is afforded as well as auniform touch on the various {ceys and a uniform extent of dip of the(QVS.

will beseen that the rear arm 13 of each key lever and the link 21 whichis pivoted thereto are both horizontally disposed in the normal positionthereof and are arranged end to end in alinement to form a toggle whlchis normally in the dead center poslt-lon so as to form what may betermed a reverse toggle-thateffects a gradual acceleration of the typebar in its movement to the printing position, the toggle being, brokenby the depression of its key from the ;fu1l to the dotted line positionshown 'in-Fig. 3." The effect of breaking j the togglein the mannerdescribed is to pull the lower end of thef assoeiated sub-leverforward-thereby effecting 'a backward pull on the associated link 27 tomove the type bar from the full to the dotted line position showri inFig. 3. This same depression ofa 'fingerkey is efl'ectii e to elevatethe universal bar as heretofore described, there-- by rocking the shaft-85 to effect anupward movement of the forward end of the lever 85) whichisefiective to elevate the vibratorand interpose the ribbon in the pathof the approaching type bar. The same movement lowers therearend of thelever, thereby actuating the feed dogs and aflording a letter spacemovement of the carriage.

Thecarriage and ribbon vibrating mechanism shown and described is notclaimed herein but const1tutes.the subject-matter of patent, dated July26,

tally disposed key levers, a series of .sub-

stantially horizontally. disposed links pivoted to said key levers atthe rear ends thereof and arranged to extend longitudinally ofsaid keyleversand toward the back of the machine, a series of sub-levers pivotedto said links, and a series of type bars actuated by said sub-levers.

2. In a typewriting machine, the combination of a series ofsubstantially horizontally disposed key levers of the first order, aseries of substantially horizontally disposed links pivoted to said keylevers and extending longitudinally thereof,a series of sub-levers ofthe first order pivoted to said links, and av series of type barsactuated by said sub-levers.

3. In a front-strike t-ypewriting machine, the combination of a seriesof key levers having rearwardly extending substantially horizontallydisposed arms,'a series of substantially horizontally disposed linkspivoted to said arms, a series of upright sub-levers v pivoted to saidlinks, and a series of up: From an inspection of Figs. 1 and 3 it wardlyand rearwardly striking type bars actuated by said sub-levers. I 4. In atypewriting machine, the combination of a series of key levers of thefirst order. said key levers having rearwardly extending horizontallydisposed arms, substa ntially horizontally disposed links pivoted tosaid arms, sub-levers that extend substantially at right. angles to saidlinks, and type bars actuated by said sub-levers.

5. In a typewriti'ng machine, the combination of a series'ofkey levershavingcrearwardly' extending substantially horizontally disposed arms,each of said arms formin one element of a toggle; asubstantially-homzontally disposed linkpivoted to'each of saidrearwardly extending arms of said key levers and forming the otherelement of thetog gle; a series of upright sub-leversof the first order,one pivoted to each of said links; and

a series of type bars connected with the up arnis that extendrearwardly'beyond the pivots thereof, each of said arms forming oneelement of a toggle; a'link pivoted to each of said rearwardly extendingarms and extendinglongitudinally in substantial alinement therewith inthe normal positions of the parts and: forming the other element ofthe-toggle; a series of upright snb-leversof the first .order, onepivoted'at its lower end vposed arm that forms one element of a reversetoggle, a horizontally disposed link pivoted to the rearwardly extendingarm of -nected to said links, and a series of upwardly said key leverand forming the other element otsaid reverse toggle, an uprightsub-lever of the first order pivoted-above the link and connected :atits lower end thereto, and an upwardly and rearwardly swinging'type baroperatively connected to said sub-lever.

. 8. In a front-strike 't'ypewriting' machine, the combination of a key.lever of the first order having a rearwardly extending horizontallydisposed arm that forms one'element of a reverse toggle, a'horizontall'ydisposed link pivoted to the rearwardly extend-.

"ing arm of said key lever and forming the other element of said reversetoggle, an upright sub-lever of the. first order pivoted above the linkand connected at its lower end thereto, an upwardly and rearwardlyswinging typebar, and a connecting link that extends forwardly from saidsub-lever to said type bar, whereby a gradual acceleration of ,the' typebar isefi'ected as it approaches the printing position,

,9. In a typevvriting machine, the combination of a' series ofhorizontally disposed key levers oft-he first order pivoted'atdifferentpoints fore and aft of the machine,-a' series of linksconnected to said key levers and ex tending longitudinally thereof, aserles of sub-levers connected to said links, and a series of type barsoperatively connectedto said sub-levers. a

10. In a front-strike typewrit'ing machine, the combination of aseriesofhorizontally disposed key levers of the first-order pivoted atdifferent points fore and aft of the machine, a series otlinks connectedto said key levers, a series of upright -sub-levers conand rearwardlystriking type bars opera; tlvely connected to said sub-levers. 11. In atypewriting machine. the combi-.

' nation of a series of horizontally. disposed key lovers of the firstorder pivoted at different points fore and aft of the machine; a I

', series of links connected to said key levers and arrangedlongitudinally of the key lever arms to which they are connected,saidllinks and th'e arms of'the key levers to which they are connectedforming reverse toggles; a series 0t sub-levers connected to said links;

and a series-of type bars operatively con nected to said sub-levers. I

12. In a front-strike;typewritmg machine,

the combination of a series of horizontally.

disposed key levers of the first order pivoted at different points foreand aft of the machine; a series of links connected to said kev leversand arranged longitudinally of the key lever arms to which theyareconnected, said links and the'arms of the key levers to "which they areconnected forming reverse toggles; a series of upright sub-leversconnected to said links; and a series of upwardly and rearwardlystriking type bars opera tively connected to said sub-levers.

13. In a typewriting machine, the combination'of a series of key levers,a series of toggle links connected 'to said key levers, a series ofsub-levers connected to said toggle links and pivoted atprogressivelyhigher elevations as the sides of the systernot" subleversareapproached, and a series of type bars operatively connected tosaidsnb-levers'.

14; In a-typewriting machine, the combination of a series ofkeylevers-of the first order pivoted at different points fore and aft ofthe machine, a series 'oftoggle links connected to said key levers, aseries of sub levers connected to said toggle links, the 'pivots of saidsub-levers being arranged in an connected to said sob-levers. v

arc,"and a series of type bars operatively' '15. In a front-striketypewriting machine,

the combination. of a series ofkeylevers,

series of toggle links connected to's'aid'key, levers, a series ofupright sub-levers connect ed to said toggle links and pivoted atprogressively higher elevations as' the sides of the system'of-snb-levers are approached,

and a series of upwardly and rearwardlysaid Sllb-IQVlS. C 1 1C). Inatypewr ting ma'clnne, the combination of a serlesof key levers-aserlesfof striking type bars operatively connected links connected tosaid key levers and a r-- ranged, longitudinally of the'key lever armsto Which they 'areconnected, said links. and the-arms of-the key leversto which they are connected forming reverse toggles, a series ofsub-leversconnected to said links, the.

.piv'ots'of said Sttb-lGVQIS being arranged in an arc. and a series oftype bars operatively ';-connected to said sub-levers. 17,111 a'typewriting machine, the coIi1hi-.;

nation of a series of key levers of the first orderpivoted at differentpoints fore and aft of the-machine, a series of links connected; to saidkey levers and arranged longitndinally of the key lever arms to'ivhichthey are connected, said'links and the arms of the key levers to whichthey are connected forming reverse toggles, a series'of sub-leversconnected to said links, the pivots of said sublevers being arranged inan arc, and a series of type bars operatively connected to saidsub-levers.

18. In a front-strike typewriting machine, the combination of a seriesof segmentally arranged upwardly and rearwardly striking type bars, aseries of upright sub-levers pivoted in the rear of the type bars at.progressively greater heights-as the sides of the system are approached,the upper ends of said sub-levers being arranged in an are thatcorresponds substantially to the arc in which the type bars are situatedand being connected with said type bars, links connected to saidsub-levers, and key levers connected with said links, each link and anarm of the associated key lever forming a toggle.

19. In a front-strike typewriting machine, the combination of a seriesof segmentally arranged upwardly and rearwardly striking type bars; aseries of upright sub-levers of the first class pivoted in the rear ofthe type bars at progressively greater heights as the sides of thesystem are approached, the upper ends of said sub-levers being arrangedin an are that corresponds substantially to the arc in which the typebars are situated; links that extend forwardly from the upper ends ofsaid sub-levers to the type bars; substantially horizontally disposedtoggle links connected to said sub-levers at the lower ends thereof; andkey levers having substantially horizontally disposed arms connectedwith said toggle links, each toggle link and an arm ofthe associated keylever forming a toggle.

20. In a typewriting machine, the combination of a series of' type bars,a series of sub-levers of the first class, both'sets of arms of thesub-levers extending greater distances from their pivots as the sides ofthe system of sub-levers are approached, one set of said armsterminating in a straight line across the machine, and key actuatedtoggles connected to said sub-levers.

21, In a front-strike typewriting machine, the combinationof a series ofsegmentally arranged upwardly and rearwardly striking type bars, aseries of upright sub-levers of the first class, both sets of arms ofthe sublevers extending greater distances from their pivots as the sidesof the system of sub-levers are approached, one set of said armsterminating in a straight line across the machine,-

and key actuated toggles connected to said sub-levers.

22. In a typewritingmachine, the combi-' from their pivots as the sidesof the system of sub-levers are approached, means forconnecting one setof arms of said sub-levers with the type bars, toggle links connectedwith the other set of arms of said sub-levers, and key levers of thefirst order connected with said toggle links and alined therewith.

23. In a'typewriting machine, the combination of a series of type bars,a series of upright sub-levers of the first class, bot. set of arms ofthe sub-levers extending greater distances from their pivots as thesides of. the system of snb-levers are approached, means for connectingone set of arms of said sub-levers with the type bars, links connectedwith the other set of arms of said snb-levcrs, and key levers of thefirst order connected with said links, one arm of each key lever and theassociated link connected thereto forming a reverse toggle that ati'ordsan accelerated movement of the..type bar as it approaches the printingposition.

24. In a front-strike typcwriting machine, the combination of a. seriesof up\ 'ardly and rearwardly striking type bars, a series of uprightsub-levers of the first class, both. sets of arms of the sub-leversextending greater zontally disposed toggle links connected with theother set of arms of said sub-levers, and key levers of the first orderhaving substantially horizontally disposed arms connected with saidtoggle links.

In a front-strike typewriting 'machine, the combination of a series ofupwardly and rearwardly striking type bars; a series of uprightsub-levers of the first class, both-sets of arms of the sub-leversextending greater distances from their pivots as the sides of the systemof sub-levers are approached; means for connecting one set. of arms ofsaid sub-levers with the type bars; substantially horizontally disposedlinks connected with the other set of arms of said sub-levers: and keylevers of the first order, said key levers having rearwardly directedsubstantially horizontally disposed arms connected 'with said links, therearwardly directed arm oteach key lever and the associated linkconnected thereto forming a reverse toggle that affords an acceleratedmovement of the-type bar as it approaches the printing position.

26. In a typewriting machine, the combination of a ser es of type bars;a series of sub-levers of the first class p1voted=1n an are andconnected with said type bars, both pivotedat differ11tpoints foreand-aft-of said sub-leversz and key levers connected to said togglelinks, sa d key levers bemg f the machine.- I

at't'of the machine, both sets of arms of said as horizontally disposedlinks connected to "posed 1 arms which are connected tosaid sub-levers,and a seriesot' keys for breaking the machine.

vbination of a series of type bars a series of sub-levers of the firstclass connected there-' wit-h, -b0th'=setsof arms of :saidysub-leversseriesv of jtoggles connected with said sub mentally arranged upwardlyand rear- .said sub-levers at the lower ends'thereof;

zontally disposed arms connected to said bination of a series oftypebars; aseries' of "manta-11v. arranged upwardly and reartheir pivots asthe sides of the system of different points fore, and aft'of the machinebin'at-ion of a series'of type bars, a series of sub-levers of the firstclass connectdthere with, a series of toggles connected with said saidto'ggles' the carriersfor keys being pivoted at-difierentpoints f01'e.1d aft of 28". In a" typewriting machine,'the "com-- increasing inlength from the center to the sides of the-'system'of'said subd'evers; a

levers; and a series of keys for breaking said toggles,.the carriers forsaidkeys' belng the inachineto provide a substantially uniform leveragethroughout the system.

29. In a' front-strike typewriting niachine, the combination ofaf'series of seg-' wardly striking type bars; a series of uprigl'it.sub-leversof thefirst class pivoted. in an arc and having their upperends 6011-, nected with said type bars, both sets of arms of saidsub-levers extendingfarther; from their pivots as thesides of the systemof sub-levers are approached; substantially horizontally disposed linksconnected to and key levers of the first order havingrearwardly"extending substantially horilinksi 2 p =30. In a,-.typewr'itmg machine,the comsub-levers ofthe first class connected therewith, botlrsets ofarms of said sub-levers extending-greater distances from their pivots asthe sides of the system of sub-levers are approached; toggle linksconnected to pivoted at different pointsfore and aft of 31. In Ifront-strike typeivriting in a-. chine, the combination of a series ofsegivardly striking type bars: a series of-upright sub-levers of thefirst class-connected therewith and adapted to vibrate fore and the typebars as they approach-the printing p ti naJ Y clined to. compensate forthe difference in wardly andu-earwardly striking type bars Qtherear ofthe type bars and interposed be tween said toggles and type bars and'the.upperends of which are-arranged in an arc substantially,co-extensivewith. the arc in levers. at the sides of the system being in- 32. In av:lront-strike typewriting machine, the combination of a series of upWardly and rearwardly striking type bars arrangedin an'arc; a series ofsubstantially horizontally disposed key actuated toggles greater inWidth than the series of; type bars; and a series of upright sub-leversbetween said toggles and type bars, the sublevers at the sides of thesystem being in- Width between the system of toggles and thesysteniof'type' bars. V l

In a front-strike typevvriting n'ia-' chine, the combination of a seriesof up arranged in an are; a series of substantially horizontallydis-posed key actuated toggles greater in width than'the series of typebars; and. a series of .upright sub-levers in which the typebars arearranged, the subclined to compensate for-the difi erence inv widthbetween-the system of toggles andthe system of type-bars. I r In atypevvrit-ing machine, the combination of a system ofkey levers;asupport or-f 'ame oirwhich all of the system of said key levers aremounted, said support .or frame being so connected to the' frame of themachine as to'be detachable therefronrwithout first di'smount-ing' anyof the other parts 1 0f the machine; and'a series of disconnecti bledevices which det-achably connect the key levers to the other parts ,ofthe type actions.'

I y In a typew'riting machine, the combi- 105 nation of a system oftype-bar's, and means for actuating said type bars including a system ofkeyactuated toggles-and also; including" detachable means connecting thetoggles withjthe type bars, said system of 110 toggles being detachablefrom the'machine r as a unit.

3('3, In a typeWrit-ing machine, the conibi-' nation of-a system oftoggles, each comprising a key lever anda link; and, type bars 115operatively connecte to said vlinks, each link having meansforeif'e'cting. a disconnect1on between the lHIkS and type bars topernntthe removal of'the system of toggles from the machine as a unit. 3 7';In a. typewriting machlne, the comb1- natlon-of a series of typebars,a=ser1es of substantially horizontally disposed key levers of thefirst class, aseries of sub'stam 'tially horizontally disp'osedlinksconnected 125 tosaid key levers. .at the rear ends thereof and forming.with said.- key levers toggles by Whichthe type barsare actuated, each.

link having-means for disconnecting said links from. operativeconnection with the 3 typebars to permit the removal of said key Ilevers and links as a unit the contact face of. which bears the samereand . of securing lation to all of said single transverse plane.

39. In a typewriting machine, the combination of a support detachablysecured to the framingof the machine, a series of de-,

pending in vidual hangers each detachably secured to said support andsituated at different points foreand aft of the machine, a series ofkey. levers pivoted to and supported by said hangers, each key leverbeing pivoted on' an individual hanger.

40, In a typewriting machine, a series of hangers carrying pivoteddevices and having each a longltudinally formed threaded hole eccentricof the center of the hanger whereby said hanger may be reversed vtochange the ofsaid hangers. 41; In a typewriting machine, the combinationof a'base plate having two'rows. of alternating holes, a single row ofhangers each having a threaded hole arrangedeccentrio of the center ofsaid hanger, a series of levers pivoted in said hangers, and two rowsscrews, the hangers being reversible so that the threaded holes thereinmay be arranged alternately above and below the pivots of the devicesmounted in said hangers and may receive the two rows of securing screws.7 42. In a typewriting machine, the combination of a series of typebars, a type bar segment in which said type bars are supported, parallellinks on which said se ment is mounted, key actuated means for shlftingout affecting nation of a key levers and is in a segment on which saidtype bars are sup-- position of the pivot of the piv oted device, and afastening screw for each said segment, a series of sub-levers, linksconnectlng said type bars and sub-leversand which afiord a shifting ofthe segment withthe other type bar connections, and a series of keyactuated toggles for actuating said sub-levers.

43. In a typewriting machine, the combiseries of type bars, a type barported, parallellinks connected to the upper portion of said segment, aframe having a transverse ,member that constitutes a rock shaft withforwardly projecting arms which extend therefrom parallel with links andwhich are connected'to said segment at the lower portion thereof, keyact-usaid parallel ated means for shifting said segment on said parallellinks and frame, actuating links connected to said type bars, sub-leversconnected to said actuating links, and key actuated toggles connectedwith said's'ub-levers.

44. In a typewriting machine, the combination of printinginstrumentalities, a series of key levers pivoted intermediate theirends, terminating at their rear ends in sub stantially the sametransverse plane, and having keys on their forward ends arranged iii; aplurality of transverse rows, the ivots o transverse rows so asto afforda uniform motion to the rear ends of the levers for a uniform motion ofsaid keys, means connected with said key levers at their rear ends foroperating said printing instrumentalities, and a universal bar lyingacross the rear ends of said key levers.

Signed at Syracuse, in the county of Onondaga, and State of New York,this 12 day of JulyA. D, 1906.

ALEXANDER T. BROWN.

- Witnesses:

GEORGE C. CARHART, C. E. 'lomnnasorr.

